I've have my Deweys issue GPS since 2008. I've had a few issues in the past loosing signal and just have to hit the select button, but this past weekend in PWS was something else. Several times it would just plain freeze up. Only way to power it down was to disconnect the cable in the back. Then for some reason, it felt like it was getting warm to the touch of the screen. What irratated me more than anything else was we would loose the bottom and would either get a red thick line on top that we only had 3 feet of water or it would br frozen on a depth and would not change even at idle with flat seas and not wind to move the boat. One time I repowered it and instead of being in Culross passage, I was on top of the mountain top. Never really had any of these issues before.
I read on the Garmin web site that you can get the upgrades and load on a SD Card. It also mentioned that if done improperly that you would have to send it in to GARMIN to reset it. I'm not wanting to loose my GPS for weeks nor do I want to loose all my settings and waypoints inside my memory.
Has anyone had any issues with theirs and did you update it as well as have you ever had to send it in to Garmin?